// ==UserScript==
// @name        libBilibiliToken
// @namespace   https://github.com/lzghzr/TampermonkeyJS
// @version     1.0.0
// @author      lzghzr
// @description 哔哩哔哩cookie获取token
// @match       *://*.bilibili.com/*
// @connect     passport.bilibili.com
// @license     MIT
// @grant       GM_xmlhttpRequest
// @run-at      document-start
// ==/UserScript==
class BilibiliToken {
  static _W = typeof unsafeWindow === 'undefined' ? window : unsafeWindow;
  static __loginSecretKey = '2653583c8873dea268ab9386918b1d65';
  static loginAppKey = '783bbb7264451d82';
  static __secretKey = '560c52ccd288fed045859ed18bffd973';
  static appKey = '1d8b6e7d45233436';
  build = '6720300';
  buvid = BilibiliToken.buvidXX;
  Clocale = 'zh-Hans_CN';
  channel = 'website';
  localId = this.buvid;
  mobiApp = 'android';
  platform = 'android';
  Slocale = 'zh-Hans_CN';
  static get buvidXX() {
    const buvid = this.md5(Math.random().toString()).toUpperCase();
    return 'XX' + buvid[2] + buvid[12] + buvid[22] + buvid;
  }
  static get TS() { return Math.floor(Date.now() / 1000); }
  headers = {
    'user-agent': 'Mozilla/5.0 BiliDroid/6.72.0 (bbcallen@gmail.com) os/android model/XQ-CT72 mobi_app/android build/6720300 channel/bilih5 innerVer/6720310 osVer/12 network/2',
    'buvid': this.buvid
  };
  get loginQuery() {
    return `appkey=${BilibiliToken.loginAppKey}&build=${this.build}&c_locale=${this.Clocale}&channel=${this.channel}&local_id=${this.localId}\
&mobi_app=${this.mobiApp}&platform=${this.platform}&s_locale=${this.Slocale}`;
  }
  static signQuery(params, ts = true, secretKey = this.__secretKey) {
    let paramsSort = params;
    if (ts)
      paramsSort = `${params}&ts=${this.TS}`;
    paramsSort = paramsSort.split('&').sort().join('&');
    const paramsSecret = paramsSort + secretKey;
    const paramsHash = this.md5(paramsSecret);
    return `${paramsSort}&sign=${paramsHash}`;
  }
  signLoginQuery(params) {
    const paramsBase = params === undefined ? this.loginQuery : `${params}&${this.loginQuery}`;
    return BilibiliToken.signQuery(paramsBase, true, BilibiliToken.__loginSecretKey);
  }
  async getAuthCode() {
    const authCode = await BilibiliToken.XHR({
      GM: true,
      anonymous: true,
      method: 'POST',
      url: 'https://passport.bilibili.com/x/passport-tv-login/qrcode/auth_code',
      data: this.signLoginQuery(),
      responseType: 'json',
      headers: this.headers
    });
    if (authCode !== undefined && authCode.response.status === 200 && authCode.body.code === 0)
      return authCode.body.data.auth_code;
    return console.error(GM_info.script.name, 'getAuthCode', authCode);
  }
  async qrcodeConfirm(authCode, csrf) {
    const confirm = await BilibiliToken.XHR({
      GM: true,
      method: 'POST',
      url: 'https://passport.bilibili.com/x/passport-tv-login/h5/qrcode/confirm',
      data: `auth_code=${authCode}&csrf=${csrf}&scanning_type=1`,
      responseType: 'json',
      headers: this.headers
    });
    if (confirm !== undefined && confirm.response.status === 200 && confirm.body.code === 0)
      return confirm.body.data.gourl;
    return console.error(GM_info.script.name, 'qrcodeConfirm', confirm);
  }
  async qrcodePoll(authCode) {
    const poll = await BilibiliToken.XHR({
      GM: true,
      anonymous: true,
      method: 'POST',
      url: 'https://passport.bilibili.com/x/passport-tv-login/qrcode/poll',
      data: this.signLoginQuery(`auth_code=${authCode}`),
      responseType: 'json',
      headers: this.headers
    });
    if (poll !== undefined && poll.response.status === 200 && poll.body.code === 0)
      return poll.body.data;
    return console.error(GM_info.script.name, 'qrcodePoll', poll);
  }
  async getToken() {
    const cookie = BilibiliToken._W.document.cookie.match(/bili_jct=(?<csrf>.*?);/);
    if (cookie === null || cookie.groups === undefined)
      return console.error(GM_info.script.name, 'getToken', 'cookie获取失败');
    const csrf = cookie.groups['csrf'];
    const authCode = await this.getAuthCode();
    if (authCode === undefined)
      return;
    const confirm = await this.qrcodeConfirm(authCode, csrf);
    if (confirm === undefined)
      return;
    const token = await this.qrcodePoll(authCode);
    if (token === undefined)
      return;
    return token;
  }
  static md5(string, key, raw) {
    return md5(string, key, raw);
    function safeAdd(x, y) {
      var lsw = (x & 0xffff) + (y & 0xffff);
      var msw = (x >> 16) + (y >> 16) + (lsw >> 16);
      return (msw << 16) | (lsw & 0xffff);
    }
    function bitRotateLeft(num, cnt) {
      return (num << cnt) | (num >>> (32 - cnt));
    }
    function md5cmn(q, a, b, x, s, t) {
      return safeAdd(bitRotateLeft(safeAdd(safeAdd(a, q), safeAdd(x, t)), s), b);
    }
    function md5ff(a, b, c, d, x, s, t) {
      return md5cmn((b & c) | (~b & d), a, b, x, s, t);
    }
    function md5gg(a, b, c, d, x, s, t) {
      return md5cmn((b & d) | (c & ~d), a, b, x, s, t);
    }
    function md5hh(a, b, c, d, x, s, t) {
      return md5cmn(b ^ c ^ d, a, b, x, s, t);
    }
    function md5ii(a, b, c, d, x, s, t) {
      return md5cmn(c ^ (b | ~d), a, b, x, s, t);
    }
    function binlMD5(x, len) {
      x[len >> 5] |= 0x80 << len % 32;
      x[(((len + 64) >>> 9) << 4) + 14] = len;
      var i;
      var olda;
      var oldb;
      var oldc;
      var oldd;
      var a = 1732584193;
      var b = -271733879;
      var c = -1732584194;
      var d = 271733878;
      for (i = 0; i < x.length; i += 16) {
        olda = a;
        oldb = b;
        oldc = c;
        oldd = d;
        a = md5ff(a, b, c, d, x[i], 7, -680876936);
        d = md5ff(d, a, b, c, x[i + 1], 12, -389564586);
        c = md5ff(c, d, a, b, x[i + 2], 17, 606105819);
        b = md5ff(b, c, d, a, x[i + 3], 22, -1044525330);
        a = md5ff(a, b, c, d, x[i + 4], 7, -176418897);
        d = md5ff(d, a, b, c, x[i + 5], 12, 1200080426);
        c = md5ff(c, d, a, b, x[i + 6], 17, -1473231341);
        b = md5ff(b, c, d, a, x[i + 7], 22, -45705983);
        a = md5ff(a, b, c, d, x[i + 8], 7, 1770035416);
        d = md5ff(d, a, b, c, x[i + 9], 12, -1958414417);
        c = md5ff(c, d, a, b, x[i + 10], 17, -42063);
        b = md5ff(b, c, d, a, x[i + 11], 22, -1990404162);
        a = md5ff(a, b, c, d, x[i + 12], 7, 1804603682);
        d = md5ff(d, a, b, c, x[i + 13], 12, -40341101);
        c = md5ff(c, d, a, b, x[i + 14], 17, -1502002290);
        b = md5ff(b, c, d, a, x[i + 15], 22, 1236535329);
        a = md5gg(a, b, c, d, x[i + 1], 5, -165796510);
        d = md5gg(d, a, b, c, x[i + 6], 9, -1069501632);
        c = md5gg(c, d, a, b, x[i + 11], 14, 643717713);
        b = md5gg(b, c, d, a, x[i], 20, -373897302);
        a = md5gg(a, b, c, d, x[i + 5], 5, -701558691);
        d = md5gg(d, a, b, c, x[i + 10], 9, 38016083);
        c = md5gg(c, d, a, b, x[i + 15], 14, -660478335);
        b = md5gg(b, c, d, a, x[i + 4], 20, -405537848);
        a = md5gg(a, b, c, d, x[i + 9], 5, 568446438);
        d = md5gg(d, a, b, c, x[i + 14], 9, -1019803690);
        c = md5gg(c, d, a, b, x[i + 3], 14, -187363961);
        b = md5gg(b, c, d, a, x[i + 8], 20, 1163531501);
        a = md5gg(a, b, c, d, x[i + 13], 5, -1444681467);
        d = md5gg(d, a, b, c, x[i + 2], 9, -51403784);
        c = md5gg(c, d, a, b, x[i + 7], 14, 1735328473);
        b = md5gg(b, c, d, a, x[i + 12], 20, -1926607734);
        a = md5hh(a, b, c, d, x[i + 5], 4, -378558);
        d = md5hh(d, a, b, c, x[i + 8], 11, -2022574463);
        c = md5hh(c, d, a, b, x[i + 11], 16, 1839030562);
        b = md5hh(b, c, d, a, x[i + 14], 23, -35309556);
        a = md5hh(a, b, c, d, x[i + 1], 4, -1530992060);
        d = md5hh(d, a, b, c, x[i + 4], 11, 1272893353);
        c = md5hh(c, d, a, b, x[i + 7], 16, -155497632);
        b = md5hh(b, c, d, a, x[i + 10], 23, -1094730640);
        a = md5hh(a, b, c, d, x[i + 13], 4, 681279174);
        d = md5hh(d, a, b, c, x[i], 11, -358537222);
        c = md5hh(c, d, a, b, x[i + 3], 16, -722521979);
        b = md5hh(b, c, d, a, x[i + 6], 23, 76029189);
        a = md5hh(a, b, c, d, x[i + 9], 4, -640364487);
        d = md5hh(d, a, b, c, x[i + 12], 11, -421815835);
        c = md5hh(c, d, a, b, x[i + 15], 16, 530742520);
        b = md5hh(b, c, d, a, x[i + 2], 23, -995338651);
        a = md5ii(a, b, c, d, x[i], 6, -198630844);
        d = md5ii(d, a, b, c, x[i + 7], 10, 1126891415);
        c = md5ii(c, d, a, b, x[i + 14], 15, -1416354905);
        b = md5ii(b, c, d, a, x[i + 5], 21, -57434055);
        a = md5ii(a, b, c, d, x[i + 12], 6, 1700485571);
        d = md5ii(d, a, b, c, x[i + 3], 10, -1894986606);
        c = md5ii(c, d, a, b, x[i + 10], 15, -1051523);
        b = md5ii(b, c, d, a, x[i + 1], 21, -2054922799);
        a = md5ii(a, b, c, d, x[i + 8], 6, 1873313359);
        d = md5ii(d, a, b, c, x[i + 15], 10, -30611744);
        c = md5ii(c, d, a, b, x[i + 6], 15, -1560198380);
        b = md5ii(b, c, d, a, x[i + 13], 21, 1309151649);
        a = md5ii(a, b, c, d, x[i + 4], 6, -145523070);
        d = md5ii(d, a, b, c, x[i + 11], 10, -1120210379);
        c = md5ii(c, d, a, b, x[i + 2], 15, 718787259);
        b = md5ii(b, c, d, a, x[i + 9], 21, -343485551);
        a = safeAdd(a, olda);
        b = safeAdd(b, oldb);
        c = safeAdd(c, oldc);
        d = safeAdd(d, oldd);
      }
      return [a, b, c, d];
    }
    function binl2rstr(input) {
      var i;
      var output = '';
      var length32 = input.length * 32;
      for (i = 0; i < length32; i += 8) {
        output += String.fromCharCode((input[i >> 5] >>> i % 32) & 0xff);
      }
      return output;
    }
    function rstr2binl(input) {
      var i;
      var output = [];
      output[(input.length >> 2) - 1] = undefined;
      for (i = 0; i < output.length; i += 1) {
        output[i] = 0;
      }
      var length8 = input.length * 8;
      for (i = 0; i < length8; i += 8) {
        output[i >> 5] |= (input.charCodeAt(i / 8) & 0xff) << i % 32;
      }
      return output;
    }
    function rstrMD5(s) {
      return binl2rstr(binlMD5(rstr2binl(s), s.length * 8));
    }
    function rstrHMACMD5(key, data) {
      var i;
      var bkey = rstr2binl(key);
      var ipad = [];
      var opad = [];
      var hash;
      ipad[15] = opad[15] = undefined;
      if (bkey.length > 16) {
        bkey = binlMD5(bkey, key.length * 8);
      }
      for (i = 0; i < 16; i += 1) {
        ipad[i] = bkey[i] ^ 0x36363636;
        opad[i] = bkey[i] ^ 0x5c5c5c5c;
      }
      hash = binlMD5(ipad.concat(rstr2binl(data)), 512 + data.length * 8);
      return binl2rstr(binlMD5(opad.concat(hash), 512 + 128));
    }
    function rstr2hex(input) {
      var hexTab = '0123456789abcdef';
      var output = '';
      var x;
      var i;
      for (i = 0; i < input.length; i += 1) {
        x = input.charCodeAt(i);
        output += hexTab.charAt((x >>> 4) & 0x0f) + hexTab.charAt(x & 0x0f);
      }
      return output;
    }
    function str2rstrUTF8(input) {
      return unescape(encodeURIComponent(input));
    }
    function rawMD5(s) {
      return rstrMD5(str2rstrUTF8(s));
    }
    function hexMD5(s) {
      return rstr2hex(rawMD5(s));
    }
    function rawHMACMD5(k, d) {
      return rstrHMACMD5(str2rstrUTF8(k), str2rstrUTF8(d));
    }
    function hexHMACMD5(k, d) {
      return rstr2hex(rawHMACMD5(k, d));
    }
    function md5(string, key, raw) {
      if (!key) {
        if (!raw) {
          return hexMD5(string);
        }
        return rawMD5(string);
      }
      if (!raw) {
        return hexHMACMD5(key, string);
      }
      return rawHMACMD5(key, string);
    }
  }
  static XHR(XHROptions) {
    return new Promise(resolve => {
      const onerror = (error) => {
        console.error(GM_info.script.name, error);
        resolve(undefined);
      };
      if (XHROptions.GM) {
        if (XHROptions.method === 'POST') {
          if (XHROptions.headers === undefined)
            XHROptions.headers = {};
          if (XHROptions.headers['Content-Type'] === undefined)
            XHROptions.headers['Content-Type'] = 'application/x-www-form-urlencoded; charset=utf-8';
        }
        XHROptions.timeout = 30 * 1000;
        XHROptions.onload = res => resolve({ response: res, body: res.response });
        XHROptions.onerror = onerror;
        XHROptions.ontimeout = onerror;
        GM_xmlhttpRequest(XHROptions);
      }
      else {
        const xhr = new XMLHttpRequest();
        xhr.open(XHROptions.method, XHROptions.url);
        if (XHROptions.method === 'POST' && xhr.getResponseHeader('Content-Type') === null)
          xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded; charset=utf-8');
        if (XHROptions.withCredentials)
          xhr.withCredentials = true;
        if (XHROptions.responseType !== undefined)
          xhr.responseType = XHROptions.responseType;
        xhr.timeout = 30 * 1000;
        xhr.onload = ev => {
          const res = ev.target;
          resolve({ response: res, body: res.response });
        };
        xhr.onerror = onerror;
        xhr.ontimeout = onerror;
        xhr.send(XHROptions.data);
      }
    });
  }
}